Evaluation of convolutional-code-based FEC under limited recovery time and its application to real-time transmission

Author

Arai, Masayuki ; Kurosu, Hitoshi ; Fukumoto, Satoshi ; Iwasaki, Kazuhiko

Author_Institution

Graduate Sch. of Eng., Tokyo Metropolitan Univ., Japan

fYear

2002

fDate

16-18 Dec. 2002

Firstpage

239

Lastpage

246

Abstract

In this paper we evaluate the effectiveness of using convolutional codes under a time limit for recovery as a method for packet loss recovery. We analyze the method´s operation when a limitation on the number of received packets is substituted for the time limitation, and derive the probability for a lost packet being recovered before the arrival of the limiting number of succeeding packets. We also evaluate this probability in the results of simulation and estimate the buffer size required for a decoder. Moreover we apply this method in constructing a dependable videoconference system and observe the resulting improvement in QoS.

Keywords

Internet; convolutional codes; forward error correction; quality of service; real-time systems; teleconferencing; QoS; buffer size; convolutional code based forward error correction; limited recovery time; lost packet recovery; probability; real-time transmission; simulation; videoconference system; Convolutional codes; Decoding; Videoconference;

fLanguage

English

Publisher

ieee

Conference_Titel

Dependable Computing, 2002. Proceedings. 2002 Pacific Rim International Symposium on

Print_ISBN

0-7695-1852-4

Type

conf

DOI

10.1109/PRDC.2002.1185643

Filename

1185643